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Halbach disc type magnetic coupling

A magnetic coupler and disc type technology, which is applied in the field of new disc magnetic couplers, can solve the problems of air transmission gap flux density, low utilization rate of permanent magnets, thick guide discs, and limited coupler applications, etc.

Inactive Publication Date: 2012-07-04
SHANGHAI DIANJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

image 3 and Figure 4 As the magnetic coupler shown adopts a disc structure, the air gap in the middle is relatively large, so the magnetic density of the air transmission gap and the utilization rate of the permanent magnet will be low, and the guide disc is thick and heavy, which greatly limits the coupling. Further application of the device

Method used

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  • Halbach disc type magnetic coupling
  • Halbach disc type magnetic coupling
  • Halbach disc type magnetic coupling

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Embodiment Construction

[0027] The specific implementation manners of the present invention are explained below in conjunction with the accompanying drawings.

[0028] See attached Figure 5 , a Halbach disc magnetic coupling, comprising a driving disc 51 fixed by a driving shaft 53 and a driven disc 52 fixed by a load shaft 54, the driving disc 51 comprising a disc body (not labeled) and a Halbach column permanent magnet 512 The permanent magnets 512 of the Halbach row are arranged on the surface of the disc body facing the driven disk 52, the permanent magnets 512 of the Halbach row are evenly distributed around the driving shaft, and the magnetization direction of the permanent magnets 512 of the Halbach row is along the axial direction ( See Figure 7 ).

[0029] The Halbach disc coupler of the present invention includes a driving disc 51 , a driven disc 52 , a driving shaft 53 and a load shaft 54 ​​. A Halbach column permanent magnet 512 is glued on the driving disk 51 and is connected with t...

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Abstract

The invention provides a Halbach disc type magnetic coupling, which comprises a driving disc fixed by a driving shaft and a driven disc fixed by a load shaft. The driving disc comprises a disc body and a Halbach permanent magnet array, wherein the Halbach permanent magnet array is arranged on the surface of the disc body, and the surface faces the driven disc; and the Halbach permanent magnet array is uniformly distributed around the driving shaft, and is axially magnetized.

Description

technical field [0001] The invention relates to a novel disk-type magnetic coupler, in particular to a Halbach disk-type magnetic coupler. Background technique [0002] Research into magnetic drives dates back to 1943, when the first known patent for the technology was awarded in England to the Howard brothers. Early industrial development of the magnetic drive pump was pioneered by Howard Machinery Development Ltd in the late 1940s. The main component of a magnetic drive pump is the magnetic coupling. The magnetic coupling is used as the transmission device in the magnetic drive pump, which utilizes the magnetic force that the magnet can attract the ferromagnetic substance or the magnet can accept the magnetic field, while the non-ferromagnetic substance is not affected by the magnetic force or is slightly affected by the magnetic force. Magnetic couplings allow power transmission through non-magnetic conductors (spacers) without contact. [0003] Permanent magnet magnet...

Claims

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Application Information

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IPC IPC(8): H02K49/10
Inventor 李键赵朝会曹书豪项峰陈垒袁龙生张迪
Owner SHANGHAI DIANJI UNIV
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